In time of peace, the High Contracting Parties and, after the outbreak of hostilities, the Parties thereto, may establish in their own territory and, if the need arises, in occupied areas, hospital and safety zones and localities so organized as to protect from the effects of war, wounded, sick and aged persons, children under fifteen, expectant mothers and mothers of children under seven. Upon the outbreak and during the course of hostilities, the Parties concerned may conclude agreements on mutual recognition of the zones and localities they have created. They may for this purpose implement the provisions of the Draft Agreement annexed to the present Convention, with such amendments as they may consider necessary. The Protecting Powers and the International Committee of the Red Cross are invited to lend their good offices in order to facilitate the institution and recognition of these hospital and safety zones and localities.